I don't answer the phone calls while on a boat, too! But I do believe in a power of technology and I'm sure that smartphones today are decent piece of gear. For example, my fav Spyglass app includes a compass, speedometer, sextant, viewfinder, maps, stars finder, it helped me navigate in thick fog, not once. 10 years ago no one could even imagine that. Weather apps are now more accurate than they were before, that's for sure. So thank you guys for your suggestions, I'm itching to check out those apps.